Series capacitor equipment

Details Series capacitor equipment Series capacitor equipment

1988-10-03

1989-12-26

DeBoer, Todd E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Capacitor protection

361 56, 361130, H02H 716

Patent

active

048901806

ABSTRACT:
Series capacitor equipment is connected into an electric power transmission line (L) and has a capacitor bank with a first part (CO) series-connected with a second part (C1-Cn) with variable capacitance. For protection against overvoltages, a first spark gap protective means (GO, T, TE) is connected across the first part, and a second spark gap protective means, connected in series with said first spark gap protective means, is connected across the second part of the bank. The point of connection (A) of the spark gap protective means is connected to the point of connection (B) of the bank parts through a resistor (R). The first spark gap protection means is adapted to be ignited at a predeternined level of the current in the power transmission line, the voltage drop across the resistor (R) then causing said second spark protective means (G) to become ignited.

REFERENCES:
patent: 3418530 (1968-12-01), Cheever
patent: 3963965 (1976-06-01), Kunkle
patent: 4625254 (1986-11-01), Fahlen
patent: 4703385 (1985-10-01), Stenstrom

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